mirror of
https://github.com/topjohnwu/ndk-busybox.git
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44 lines
916 B
C
44 lines
916 B
C
/* vi: set sw=4 ts=4: */
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/*
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* runlevel Prints out the previous and the current runlevel.
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*
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* Version: @(#)runlevel 1.20 16-Apr-1997 MvS
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*
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* This file is part of the sysvinit suite,
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* Copyright 1991-1997 Miquel van Smoorenburg.
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*
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* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
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*
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* initially busyboxified by Bernhard Fischer
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*/
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#include <utmp.h>
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#include "libbb.h"
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int runlevel_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int runlevel_main(int argc, char **argv)
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{
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struct utmp *ut;
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char prev;
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if (argc > 1) utmpname(argv[1]);
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setutent();
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while ((ut = getutent()) != NULL) {
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if (ut->ut_type == RUN_LVL) {
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prev = ut->ut_pid / 256;
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if (prev == 0) prev = 'N';
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printf("%c %c\n", prev, ut->ut_pid % 256);
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if (ENABLE_FEATURE_CLEAN_UP)
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endutent();
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return 0;
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}
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}
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puts("unknown");
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if (ENABLE_FEATURE_CLEAN_UP)
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endutent();
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return 1;
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}
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